Home / 135,507.36-203,152.50-64,394.31

Finding the Fourth Proportional to 135,507.36, 203,152.50 and 64,394.31

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Solution

The fourth proportional to 135,507.36, 203,152.50 and 64,394.31 is: 96,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,507.36 : 203,152.50 = 64,394.31 : x
  2. Step 2: Convert to fraction form
    135,507.36/203,152.50 = 64,394.31/x
  3. Step 3: Cross multiply
    135,507.36x = 203,152.50 × 64,394.31
  4. Step 4: Simplify right side
    135,507.36x = 13,081,865,062.28
  5. Step 5: Solve for x
    x = 13,081,865,062.28/135,507.36
  6. Step 6: Final answer
    x = 96,539.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.